baber/WOPTO huggingface dataset:
Patent CA-2014919-A1 (CA)
Inventor: ROBARGE DEAN A
IPC: H01H21/16
Filed: 1990-04-19
Abstract: A Fusible electric switch is herein described for increased ratings within industrial electrical distribution circuits by the provision of an arc exhaust gas controller. The arc gas controller cools and deionizes the arc gases that are generated upon separation of the switch contacts and exhausts the gases ins a predetermined direction outside the switch enclosure. Fuse pullers are arranged at one end of each of the switch fuses to facilitate both installation and removal of the fuses.
Patent CA-2015333-A1 (CA)
Title: Tapered auger shredder
Inventor: KOENIG LARRY E
IPC: B30B11/24
Filed: 1990-04-25
Abstract: A tapered auger shredder which includes a frame defining a grinding chamber with a front wall having a centrally-located discharge opening and a rear wall mounting a powered auger screw having a flighted shaft extending through the chamber and into the discharge opening.  The auger screw and shaft are tapered and the screw flight is correspondingly tapered so that the volume pumped by the screw along the length of the shaft remains substantially constant, or the rate of compression is substantially reduced, to provide consistent flow of material to the discharge opening and reduce build up of material against the front wall.  In a preferred embodiment, the screw includes a torque transmission collar which extends between a disc-shaped base plate supporting the screw and the first flight turn and acts to prevent jamming of material between the base plate and underside of the first turn as well as transmit rotational torque from the disc to the shaft and flight.
Patent CA-2017132-A1 (CA)
Inventor: GARNIER MARCEL
IPC: H05B6/22
Filed: 1990-05-18
Abstract: This crucible (1) is formed by a conductive wall (6) constituted by a number of hollow longitudinal sectors which are at least partially electrically insulated from one another, passed through internally by a refrigerant fluid and positioned inside an inductor. Said wall is provided in its lower part with an opening (3), inside which there is a removable obturator (4) which is sectorised and cooled like the wall of the crucible. 
<??>This crucible finds application in the smelting of materials of great purity which can be recovered in the liquid state in a convenient, complete and rapid manner. 
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Patent CA-2018341-A1 (CA)
Inventor: ZAH CHUNG-EN
IPC: H01S5/00
Filed: 1990-06-05
Abstract: Abstract of the Disclosure The effective modal reflectivity of angled antirefleetion-coated facets of a traveling-wave laser amplifier is significantly reduced by flaring the waveguiding portion of the amplifier in the immediate vicinity of the facets. In this way, low-reflectivity facets are achieved with simple low-cost antireflection coatings, thereby providing economical amplifiers characterized by wide bandwidth and high output saturation power.
Patent CA-2019193-A1 (CA)
Title: Safe sodium percarbonate composition
Inventor: SATO KANJI
IPC: C01B15/10
Filed: 1990-06-18
Abstract: Abstract A safe sodium percarbonate composition is obtained by incorporating therein urea, urea derivatives, acetates, amino acids having not less than 7 carbon atoms or salts thereof, triazine compounds or quanidine compounds.
Patent CA-2019342-A1 (CA)
Title: Gimbal module
Inventor: JACOBSON PETER E
IPC: B23Q1/00
Filed: 1990-06-20
Abstract: ABSTRACT OF THE DISCLOSURE          A gimbal module for installation in a gimbal assembly is provided.  The gimbal module is suitable for operation by a simple type of robot device for use in a space environment.      The module has a stator, which is fixedly connected to a first gimbal, and has a rotor, which is fixedly connected to a second gimbal.   The first gimbal, second gimbal, stator and rotor are coaxial along a common gimbal axis upon installation thereof The stator and first gimbal have respectively a stator spline and a gimbal spline for aligning and installing the stator in the  first  gimbal.  The stator has a bearing which rotatably supports  the  rotor. The  first  gimbal has a bearing which rotatably supports the second gimbal. The first gimbal has an adapter plate which connects  to the stator.  The second gimbal has a second adapter plate which connects to the rotor.  The stator  and  first gimbal  have  respective  stator  connector components.   A first force is applied along the gimbal axis on the  module  for  aligning  and  installing  the  stator  and  its connector component into the  first gimbal and its connector component.   The rotor and the second gimbal have respective rotor connector components.  The rotor has a rotary hex nut, a pinion gear fixedly connected to the rotary hex nut, a ring gear with an internal thread connecting to the pinion gear and with three external equally spaced rollers, and a cam ring with three  internal  cam  slots  respectively  receiving  the  three rollers.  The  cam  ring,  which  is supported by the rollers supports  the  second  gimbal  connector  component.   The rotor supports the rotor connector component.  The hex nut is rotated by the robotic device for applying a force urging the connector component on the cam ring into the connector component on the rotor.
Patent CA-2021784-A1 (CA)
Title: Cyclopentane derivatives
Inventor: BORTHWICK ALAN D
IPC: C07D487/04
Filed: 1990-07-23
Abstract: ABSTRACT               CYCLOPENTANE DERIVATIVES     The present invention provides a compound of formula (I)                         (I) and salts and solvates and pharmaceutically acceptable derivatives thereof, and describes processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of viral diseases, especially those caused by the Herpetoviridae.
Patent CA-2022076-A1 (CA)
Inventor: HERZIG CHRISTIAN
IPC: C08G77/20
Filed: 1990-07-26
Abstract: Docket No. Wa 8920-S Paper No. 1 A PROCESS FOR PREPARING ORGANO(POLY)SILOXANES   HAVING Si-LINKED, CONJUGATED DIENYL GROUPS                Abstract of the Disclosure Organo(poly)siloxanes having Si-linked, conjugated dienyl groups are prepared by adding a secondary or tertiary acetylenic alcohol (1) to an organo(poly)siloxane (2) having at least one Si-linked hydrogen atom in the presence of a catalyst (3) which promotes the addition of Si-linked hydro-gen to an aliphatic multiple bond, and then eliminating water by an intramolecular reaction in the presence of an acid catalyst (4) from the alkenol groups of the organo(poly)si-loxane thus obtained.
Patent CA-2023040-A1 (CA)
Inventor: COLEMAN MICHAEL D
IPC: E05B65/10
Filed: 1990-08-09
Abstract: The mechanism is configured to operate both a primary latch bolt and secondary latches, and provides for immediate, ready egress for the side of a door to which the mechanism is mounted, but offers high security for the other, outside of the door. The latch bolt is directly controlled by a first linkage, and the secondary latches are directly controlled by a second linkage.  During egress, both linkages translate together, via a pin connection. However, a lost motion arrangement prevents retraction of either the bolt, or the secondary latches, if the other is compromised (or operated by a key or combination).  From the outside, high security side of the door, the latch bolt and the secondary latches must be retracted together.
Patent CA-2027514-A1 (CA)
Inventor: LAPPE PETER
IPC: B01J31/40
Filed: 1990-10-12
Abstract: To recover rhodium from distillation residues of crude products from the oxo synthesis, the residues are treated in the presence of an alkali metal salt of a C2- to C5-monocarboxylic acid with oxygen or an oxygen-containing gas. The rhodium is subsequently extracted in the form of a water-soluble compound with water.
Patent CA-2027660-A1 (CA)
Title: Emulsion breaking using cationic quaternary ammonium starch/gums
Inventor: MITCHELL DAVID B
IPC: B01D17/04
Filed: 1990-10-15
Abstract: ABSTRACT This invention relates to a novel composition for breaking oil in water emulsions.  More specifically, this invention relates to a cationic quarternary ammonium modified blend of a starch and a natural gum, which is effective at breaking oil in water emulsions.
Patent CA-2028143-A1 (CA)
Title: Two-speed planetary gear mechanism
Inventor: BRANDT CHRISTOPHER D
IPC: F16H63/30
Filed: 1990-05-03
Abstract: Abstract of the Disclosure Two-Speed Planetary Gear Mechanism A compact planetary gear mechanism (10) includes an axially shiftable ring gear (72) to provide a direct drive mode or a speed reduction ratio mode between an input sun gear (64) and an output planet carrier (74).  In a first embodiment, the ring gear (72) is urged in a first direction by a compressible spring apparatus (119) to a conjoint coupled relationship with the sun gear (64) for direct drive.  The ring gear (72) is urged by a hydraulically actuated annular piston (134) into a fixed relationship with a stationary coupling (26) in opposition to the compressible spring apparatus (119) in the reduction mode.  A second embodiment has no spring apparatus (119) so that the annular piston (134) is hydraulically biased in either axial direction for positively shifting the ring year (72).
Patent CA-2030582-A1 (CA)
Title: High voltage high power dc power supply
Inventor: COLLIER JOHN A
IPC: H02M7/04
Filed: 1990-11-23
Abstract: ABSTRACT OF THE INVENTION A high voltage,  high power  DC  power  supply includes a single turn primary winding driven through a resonating capacitor by an AC source having a frequency in  excess  of  about  100kHz.    The primary winding includes a pair of concentric cylindrical metal walls having opposite ends electrically connected to each other.   A volume between the walls includes plural secondary winding assemblies,  having different axial positions  along the walls.   Each of the assemblies includes  an  annular magnetic  core  surrounding the interior wall,  a winding on the core and a voltage doubler rectifier.  DC voltages developed across each secondary winding assembly by the rectifier are added together  to  provide  the  high voltage,  high power output.    The power  supply energizes  an X-ray tube having a grounded anode and a cathode at a DC voltage of approximately -150kV, with a power requirement of between 15 and 60kW.  The power supply and X-ray tube are mounted on a rotatable gantry including a slip ring assembly  for  coupling  a  relatively  low  voltage excitation source to the power supply.
Patent CA-2034131-A1 (CA)
Title: Method and apparatus for making transferring shells for cans
Inventor: BROWN OMAR L
IPC: B21D51/38
Filed: 1991-01-14
Abstract: Abstract of the Disclosure A method and apparatus are disclosed for making and transferring shells for cans within a ram press.  The shells are formed in a two-step operation in which shell preforms are formed at a first station within the press and then transferred to second station where they are formed into completed shells.  The first station includes first (FS-1) and second (FS-2) rows of tooling sets with the tooling sets of the first row being located in alternating transverse positions relative to the tooling sets of the second row.  Similarly, the second station includes third (SS-3) and fourth (SS-4) rows of tooling sets in which the tooling set of the third row are located in alternating transverse positions relative to the tooling sets of the fourth row, and the tooling sets of the third and fourth rows are located for receiving the shell preforms from the tooling sets of the second and first rows, respectively. The shell preforms formed in the first row are transferred along a lower transfer plate LP within the press to the fourth row tooling, and the shell preforms formed in the second row are transferred along an upper transfer plate UP within the press to the third row tooling.  In addition, extendable cylinders (110, 112) are provided for lifting the lower and upper transfer plates to provide access to the lower tooling and shell transfer paths.
Patent CA-2035897-A1 (CA)
Title: Air cleaning unit
Inventor: SHONFELD DAVID
IPC: B01D53/32
Filed: 1990-07-11
Abstract: An air cleaning unit effectively removes pollutants from the air.  The air cleaning unit is relatively compact and can be powered by a standard electrical socket. The air cleaning unit can function as an illuminating light and fragrance dispenser also. The air cleaning unit has a filter (60) and an electromagnetic fiel creator (82) through which a fan (100) forces air.
Patent CA-2037803-A1 (CA)
Title: Improved elastomeric layer for multilayer tonable photosensitive elements
Inventor: PATRICIA JEFFREY J
IPC: G03F3/10
Filed: 1991-03-08
Abstract: TITLE IMPROVED ELASTOMERIC LAYER FOR MULTILAYER     TONABLE PHOTOSENSITIVE ELEMENTS         ABSTRACT      Photosensitive elements are disclosed having a photosensitive layer and an elastomeric layer that is the polymer of an alpha-olefin having at least 5 backbone carbon atoms.  The elements are useful to produce colored images, such as for colorproofing.
Patent CA-2039915-A1 (CA)
Title: Two-quadrant converter and its use as the control element of an energy store
Inventor: DAHLER PETER
IPC: H02J15/00
Filed: 1991-04-05
Abstract: ABSTRACT OF THE DISCLOSURE    Two-quadrant converter, method of operating a two-quadrant converter and its use as the control element of an energy store A two-quadrant converter (8) having a connected superconducting magnetic memory (L) can be used as a chopper  circuit  or  as an  actuator  for  stabilizing networks and for short-term bridging of power failures, in  particular  in  connection  with  installations  for uninterrupted power supply.  In this arrangement,  the two-quadrant converter (8)  is connected on the input side to an intermediate d.c.  circuit of a converter whose intermediate circuit voltage (Ud) is stabilised by an indirect capacitor (C). The magnetic memory (L) is charged and discharged, respectively with energy in cyclic intervals, i.e. in conjunction with interposed free-wheeling  intervals.  Charging  takes  place  via triggered thyristors  (V1)  and  (V2),  discharging via conducting  diodes   (D1)   and   (D2),   with  blocked thyristors (V1, V2). In order to reduce the switching rate of the semiconductor valves (V1, V2, D1, D2), and thus the energy losses, the free-wheeling of a current (IL)  through the magnetic memory  (L)  is alternately conducted via the thyristor (V2) and the diode (D2) or via the diode  (D1)  and the thyristor (V1). When the magnetic memory (L) is in a charged state and is to be neither charged nor discharged over lengthy intervals, its current (IL) can be conducted in the free wheel via a closed mechanical switch (S3) connected in parallel. Mechanical switches (S1, S2) in parallel with the diode (D1)  and the thyristor  (V2)  can unload these semi-conductor valves or take their place.                                               (Fig. 2)
Patent CA-2040658-A1 (CA)
Title: Load sensing assembly
Inventor: PORCARI VINCENZO
IPC: G01G21/24
Filed: 1991-04-17
Abstract: LOAD SENSING ASSEMBLY ABSTRACT OF THE DISCLOSURE   A load sensing assembly adapted to measure the weight of loads which act with both vertical and horizontal direction force components by resolving such force components solely into a vertical downward force component representative of the weight of the load is disclosed. This assembly comprises a first support member having a generally inclined leg portion fixedly mounted against movement, a second support member moveably mounted with respect to the first support member having a load support portion for supporting the load to be measured, a third member for interconnecting the first and second support members toward first ends thereof formed of elastically deformable material capable of transmitting only tensile force and no other types of force and a fourth member interconnecting the first and second support members toward the opposite ends thereof also formed of elastically deformable material capable of transmitting only tensile force and no other types of force. Together these fourmembers form a quadrilateral load support structure for supporting a load to be measured which flexes under the load for transmitting only vertically downward forces applied by the load and no other forces. A load cell measures the load via the quadrilateral structure and produces a signal representative of the magnitude of the vertical downward force of the load.     (098CR001)
Patent CA-2041350-A1 (CA)
Title: Garbage truck
Inventor: KLOSSEK JOHANNES
IPC: B65F3/20
Filed: 1991-04-26
Abstract: GARBAGE TRUCK                           Abstract The invention refers to a garbage truck with a garbage inlet opening leading into a tipping section, with a press means being reciprocably movable in the tipping section and guided along the side walls thereof, said press means propelling the discharged garbage through an opening into a container, and with at least one lateral arm or wall reinforcing the side walls of the tipping section and being arranged above the press means. For the solution of the problem to provide a safety means for a garbage truck of said kind, which prevents damages of the garb-age truck caused by objects discharged in the tipping section and getting jammed between the press means and parts of the ing section or the container, in the upper section of the open push-out side of the tipping section a sensing element is arrang-ed which generates a signal when there is a jam or when there are tilted or bulky objects, said signal stopping the travel of the press means or changing the latter's drive to a reverse mot-ion.
Patent CA-2042146-A1 (CA)
Title: High precision composite amplifier with improved high speed response
Inventor: SCHANEN PAUL C
IPC: H03F3/34
Filed: 1991-05-09
Abstract: ABSTRACT      A high precision composite amplifier for use in a data acquisition subsystem of a Computerized Tomography (CT) scanner provides enhanced high speed response in terms of reduced settling time.  The speed improvement is due to a novel compensation network in which a high frequency pole and a zero in the open loop response characteristic for the composite amplifier are forced to cancel despite component and temperature variations.  The resulting amplifier exhibits a simple, higher speed, single pole response.  An adjustable circuit is provided for adjusting the placement of the zero to assure optimum pole/zero cancellation.
Patent CA-2043575-A1 (CA)
Inventor: TURNER PETER A
IPC: B29C47/06
Filed: 1991-05-30
Abstract: A weather seal is particularly suitable for use in prefabricated window systems made from polyvinyl chloride members. In one embodiment, a bulb seal having a tubular portion and an anchor portion is co-extruded using polyvinyl chloride compositions of different hardnesses. About 205.degree. of the tubular portion is made from relatively resilient plastic, and the rest of the tubular portion and the anchor portion is made from relatively rigid plastic. The anchor portion is used for connecting the seal to a window sash. The sash can be made by forming a long bulb seal precursor element by co-extrusion, forming a long sash precursor element by extrusion, mounting the bulb seal precursor element on the sash portion precursor element to form a long joint precursor element, cutting the joint precursor element into segments which serve as sash portions, arranging for sash portions in a rectangular pattern; and heating these sash portions at their corners to weld them together. In another embodiment, a co-extruded V-seal has a relatively resilient leg and a relatively rigid leg which is connected to a relatively rigid anchor portion. In another embodiment, a bulb seal is co-extruded as part of a sash precursor element.
Patent CA-2044222-A1 (CA)
Title: Freight brake control valve having lap leakage protection
Inventor: HART JAMES E
IPC: B60T15/42
Filed: 1991-06-10
Abstract: A service valve piston assembly for a freight brake control valve device in which the graduating valve is configured to cooperate with the associated slide valve to close off the application port via which auxiliary reservoir pressure acting on one side of the piston assembly feeds the brake cylinder prior to opening of the stability port via which the brake pipe pressure on the opposite side of the piston assembly is communicated with auxiliary reservoir pressure on the one side of the piston, thereby preventing the piston valve assembly from finding a quasi-lap position in which the brake cylinder continues to be pressurized.
Patent CA-2047311-A1 (CA)
IPC: E06B9/36
Filed: 1991-07-17
Abstract: An operating mechanism for a blind or shielding device having angularly adjustable and retractable slats 12, said mechanism comprising a first driven element 27 for pivotally adjusting the angular orientation of the slats and a second driven element 30 for transversely moving the slats towards and away from the retracted position, a common actuating member 22 for driving said first and second driven elements, a coupling device 24 directly coupling said first driven element to said common actuating member, a final engagement and lost motion mechanism 28,30 for releasibly engaging said common actuating member to said second driven element and allowing entraining of said second driven element after a predetermined number of revolutions of said actuating member neither of two different rotational senses, the final engagement associated with said lost motion mechanism in each rotational sense inducing a reactive force in an axial direction, said reactive force assisting in declutching of said coupling device.
Patent CA-2048483-A1 (CA)
Title: Process for removing residual monomers and oligomers from amine-containing polymers
Inventor: ALBRIGHT ROBERT L
IPC: B01J39/04
Filed: 1991-08-06
Abstract: ABSTRACT OF THE INVENTION        Treatment of water-soluble, amine-containing polymers with strong acid, cation exchange resins from aromatic copolymer crosslinked with 2 - 25% polyvinyl crosslinker, followed by ultrafiltration with a membrane filter having a molecular-weight cutoff, measured against the polymers to be treated, of about 10,000 to about 15,000, results in a highly effective removal of residual monomers and oligomers of less than 500 molecular weight.
Patent CA-2051660-A1 (CA)
Title: Method of frying oil treatment using an alumina and amorphous silica composition
Inventor: SEYBOLD JED C
IPC: A23D9/00
Filed: 1991-02-15
Abstract: The treatment of cooking oil with a combination of alumina and amorphous silica is disclosed. This combination, preferably with a silica hydrogel and a hydrated alumina, reduces all contaminants known to degrade the oil without introducing metals or increasing undesirable soaps.
Patent CA-2055324-A1 (CA)
Title: Laser with longitudinal mode selection
Inventor: HUBER DAVID R
IPC: H01S3/083
Filed: 1991-11-13
Abstract: A laser is fabricated from an optical transmission medium having a laser cavity with an rare earth (e.g. Erbium) doped portion.  At least one longitudinal mode is suppressed using a plurality of series coupled Fabry-Perot cavities, an optical grating, or a combination thereof.  Ring lasers and linear structures are disclosed.
Patent CA-2055553-A1 (CA)
Title: Production and heat storage system for low temperature chilled water
Inventor: SEYA YOSHIMI
IPC: F24F5/00
Filed: 1991-11-14
Abstract: ABSTRACT   The present invention includes a heat storage tank (1) with a built-in suction chamber (2), a first heat source unit (R-1) and a first pump (P-1) for pumping up water from the high-temperature side (3) of said heat storage tank (1) and supplying the chilled water into said suction chamber (2), a low-temperature heat exchanger (5) for exchanging heat between water and an antifreeze solution, a second pump (P-2) for pumping up water from said suction chamber (2) and supplying the water chilled by the antifreeze solution in said low-temperature heat exchanger (5) to the low-temperature side (4) of said heat storage tank (1) and a second heat source unit (R-2) and a third pump (P-3) for cooling the antifreeze solution in an antifreeze solution tank (6) and feeding it to said low-temperature heat exchanger (5), and is designed to variably control the flow rates of said first and second pumps (P-1 and P-2) in dependence upon their suction temperatures.